Type-C USB
• Used for device charging and plug in OTG.
Headphone
• Insert a wired headset, and the sound will be switched from the speaker to the
headset.
MIC
• Used to make phone calls, video and voice conversations.
Speaker
• Used for listening to music or sound amplification.
Indicator Light
• Android Charging and Notification Indicator Lamp (Breathing Lamp) (Red, Green).
SD card slot and a SIM card slot, a SAM card slot
• Used to insert SIM card, SAM card and SD card.
Power Button
• Short Press: Light the screen, lock the screen.
Long press: In shutdown state, long press 2-3 seconds to turn on;
• When in use, press 2-3 seconds for a long time, and you can choose to Power off,
Restart or Screenshot.
• In the crash state, long press 10 seconds to restart automatically.
Volume Up Button
• Compatible with the functions of code scanning and volume up adjustment.
Volume Down Button
• Compatible with the functions of code scanning and volume down adjustment.
PRODUCT INTRODUCTION
Printing Instructions
This device supports 58mm thermal paper with the specifications of.
57±0.5mmφ40mm.
1. Open the printer cover;
2. Load the paper correctly into the printer as the direction shown above;
3 . Close the cover of the printer and finish.
Note: If the printed paper is blank, please check whether the paper roll has
been installed in the correct direction.
